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Mathematics: Post your doubts here!

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guys i wanted to ask how to :
1) factrorise completely
2) how to solve 9<3n+x<=21
3) how to find the dignol length in a cuboid
 
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http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w09_qp_4.pdf

This is one of the hardest paper i solved , and i have a lot of Q ,, please help me ..

Q 2 a iv , why the factor is -1 but not 1 ?

Q3 C

Q6 D

Q7 C ii

Q8 C iii

Q10 C , f , g

Solve the one you know , plz help
for 8c use yo scale to know how many squares are one centimeter horizontal and vertical
so you will know 5 boxes vertical and horizontal are 1 cm
and vertical is X axsis so now you know for i cm^2 you will have 5 frequency density
and horizontal is Yaxisis so no you will have 0.5 minutes on the y axsis as the time
The formula is Frequncy Density= Frequency/Class with
5=x/0.5
5*0.5=2.5 i hope yo understood i will work on your other questions too
 
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I need help,any body know the sequence formulaes or how to solve the sequence questions??
 
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I know almost NOTHING about maths except for algebra and trigonometry and graphs and geometry which I learned since the exams started :|..(our maths teacher got replaced 3 times >.>")...
what are my chances of passing this exam?
I solved pretty well in paper 12or at least that's how I feel.. I need huge help in metrics and transformations and predictions and estimations (idk name sry). any help is appriciated thanks..
 
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I know almost NOTHING about maths except for algebra and trigonometry and graphs and geometry which I learned since the exams started :|..(our maths teacher got replaced 3 times >.>")...
what are my chances of passing this exam?
I solved pretty well in paper 12or at least that's how I feel.. I need huge help in metrics and transformations and predictions and estimations (idk name sry). any help is appriciated thanks..
sure
 
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hahah this are really brief and helpful
and yeah if you need help with questions form past papers do ask me i will help you out if know
and yeah no one fail in maths its like impossible that won't happen
 

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AsSalamoAlaikum Wr Wb...

Stuck somewhere in Maths?? Post your queries here! Members around will help you InshaAllah.

NOTE: If you have any doubt in the pastpper questions, then kindly post the link to the paper!

May Allah give us all success in this world as well as the HereAfter...Aameen!!

SEQUENCES-Points to remember:
Many people find it hard, but to be honest it's just more of logic..that's all!

Sequences!

Using log for indices.


Can someone please write down all the formulas needed for mensuration in maths p4..
 
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its G= X+2n and I=x+2n+2 .... as they said the box is n x n sooo when u go down from the top to the bottom thats 2x and yeah but for I there are 2 more boxes to go to.... so those are calculated as numbers... as u know it adds up by one each time it moves to the left so +2... i hope u get it.... because this is very easy!

Tnx a billion...it was rele vry helpful...:)
 
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